The SEC approved new rules of the three major U.S. listing markets that toughen the standards that companies going public through a reverse merger must meet to become listed on those exchanges.

In summer 2010, the SEC launched an initiative to determine whether certain companies with foreign operations – including those that were the product of reverse mergers – were accurately reporting their financial results, and to assess the quality of the audits being done by the auditors of these companies. The SEC and U.S. exchanges have in recent months suspended or halted trading in more than 35 companies based overseas citing a lack of current and accurate information about the firms and their finances. These included a number of companies that were formed by reverse mergers. In June, the SEC issued an investor bulletin warning investors about companies that engage in reverse mergers.

Under the new rules, Nasdaq, NYSE, and NYSE Amex will impose more stringent listing requirements for companies that become public through a reverse merger. Specifically, the new rules would prohibit a reverse merger company from applying to list until:

The company has completed a one-year “seasoning period” by trading in the U.S. over-the-counter market or on another regulated U.S. or foreign exchange following the reverse merger, and filed all required reports with the Commission, including audited financial statements.

The company maintains the requisite minimum share price for a sustained period, and for at least 30 of the 60 trading days, immediately prior to its listing application and the exchange’s decision to list.

Under the rules, the reverse merger company generally would be exempt from these special requirements if it is listing in connection with a substantial firm commitment underwritten public offering, or the reverse merger occurred long ago so that at least four annual reports with audited financial information have been filed with the SEC.